Feed-water heater.



Patented Aug. 28, I900.

J. MERTES.

FEED WATER HEATER.

(Application filed May 21, 1900.) v

No Model.)

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UNirnD STATES PATENT FFICE.

JOHN MERTES, OF MILWVAUKEE, \VISCONSIN.

FEED-WATER HEATER.

SPECIFICATION formingpart of Letters Patent NO. 657,027, dated August28, 1900. Application filed May 21, 1900. Serial No. 17,432. (No model.)

To all whom, it may concern.-

Beit known that 1, JOHN MERTES, a citizen of the United States, and aresident of Milwaukee, in the county of Milwaukee and State ofWisconsin, have invented certain new and useful Improvements inFeed-Water Heaters, Condensers, and Purifiers; and I do hereby declarethat the following is a full, clear, and exact description thereof.

My invention relates to devices for heating and purifying feed-water,its object being to provide a much simpler heater than those in generaluse with the greatest possible amount of heating-surface and perfectfiltration, and also to overcome the principal defect in feedwaterheaters now in use by devising one with all its parts accessible, sothat it may be thoroughly and readily cleaned; and it consists incertain peculiarities of construction and combination of parts, as willbe fully set forth hereinafter and subsequently claimed.

In the drawings, Figure 1 is a vertical cen tral section of my improveddevice. Fig. 2 is a cross-section of the same on line 2 2 of Fig. 1; andFig. 3 is a similar section on a lower plane, as indicated on line 3 3of Fig. 1.

Referring by letter to the drawings, A represents a vertical closedouter shell supported upon legs a a, and suspended therein by straps I)b is a feed-water tank B, open at its top and of less diameter than theshell A, thereby forming a steam-space between the two and also betweenthe bottom of the said shell and the tank B. A filter-chamber O isformed by a vertical partition 0 in the feedwater tank having a closedtop a and a perforation bottom D, that rests loosely upon an angle-ironframe (I, which is sufficient dis tance from the bottom of thefeed-water tank to allow free passage for the water to pass from thelatter to the filter. This construction enables me to do all thefiltering from the bottom, and I consider it quite an important featureof my invention, as it gives the sediment in the unfiltered water achance to settle to the bottom of the feed-water tank, thus lighteningthe work upon the filter,which will consequently not clog or become foulso soon and will give a purer filtration. The upper part of thefilter-chamber O is connect ed to the shell A by a ring 6, which forms aseat for a manhole-cover E, whereby access is had to filter from theoutside for the purpose of placing the filtering material therein andcleaning, and in the partition-wall c I also provide a door F, throughwhich the filter material may be taken out. G is a leadpipe from thefilter, through which the purified water is taken, and H is an overflow.I also provide a short vent -pipe I, that is tapped into the top of thefilter and is normally open to the steam-pressure in the shell A for thepurpose of equalizing the pressure upon the filtered water. Acock f isplaced at the top of this pipe, with its stem f extending through theshell A, and between said cock and filter is a branch pipe J, which ex;tends outside of the shell and is provided with a suitable cock g. henit is desired to clean out the filter-chamber, the cock f of pipeI isclosed and steam is admitted through the pipe J to blow out the saidchamber.

The shell A has its top preferably bolted thereto, and the water-supplypipe K by a suitable fitting is connected to the said top and dischargesupon the first of a series of horizontal baffle-plates L, which are ofthe same diameter as the shell A, fitting snugly against the latter uponangle -iron ribs it. These plates are alternately cut away to form (asbest shown in Fig. 2 of the drawings) a passage for the water,whichpasses over them in a thin sheet and finally falls upon adownwardlyinclined annular hood M, (which is riveted to the shell A,)and while serving as a guard to prevent the water passing down throughthe steam-space sheds the latter upon the'top of the filter chamber.Diametrically opposite the supply-pipe K and near the top of the shell Ais the exhaust steam-supply pipe N, which is provided with a suitableoilextractorj, and,as shown,the steam and water come in contact as soonas they enter the feed-water heater,and the steam following the courseof the bathe-plate passes downward, then under the hood N and betweenthe feedwater tank and shellA, and out through the ontlet pipe 0 nearthe bottom of said shell.

Between the plates L, I provide hand-holes K, through which anysubstance that may accumulate upon the plates may be taken out. Theshell A, near its bottom, is connected to the feed-water tank by a ringZ, which is normally closed by a manhole-cover P and through which thefilter material may be re moved, as may also the baffle-plates L. Whenit is desired to give the device a thorough cleaning, the baffle-platesfor this reason are made in sections 3' j, as shown, their width beingless than the greatest diameter of the ring j and having one of theiredges provided with downwardly projecting flanges 3' and the others withgrooves t i into which they lock and form a smooth continuous surfacefor the Water to flow over.

A washout-pipe Q is provided at the bottom of tank B,and the shell A hasthe usual drainpipe R.

The operation of a feed-water heater, condenser, and purifier of thisclass is so well known that I do not deem it necessary to go morefullyinto an explanation of it, but would particularly call attention tolarge area of heating-surface over which the water passes before itreaches the tank, due to my con struction and arrangement of thebaffle-plates and also to the fact that the water, when at its greatestheat and before passing into the tank, is deflected upon the top of thefilterchamber (which is additionally heated thereby) by the hood M andis then allowed to thoroughly settle before any filtration takes placeand also that all parts-which are liable to become foul are accessibleand may be readily cleaned.

Having thus described my invention, what Iclaim as new, and desire tosecure byLetters Patent, is

In afeed-water heater, condenser and purifier, the vertical closed shellresting upon legs, an open tank suspended therein of less diameter thanthe said shell; a portion of said tank being partitioned off closed atits top and sides and open at its bottom to form a filter-chamher; ascreen loosely fitted in said bottom a pipe extending from the top ofsaid filterchamber and normally open to steam-pressure in the closedshell; a downwardly -inclined circular hood fast to the wall of theaforesaid closed shell above the filter-chamber, and top of said opentank, baffle-plates horizontally disposed above the inclined annularhood, each of the baffle-plates being in two or more sections, lockedtogether and resting upon ribs made fast to the vertical closed outershell, an inlet Water-pipe, and a steam-inlet above said baffleplates;hand-holes interposed in the wall of the closed shell and between saidbaffle-plates, a steam-outlet near the bottom of said closed shell, anda manhole connection between outer shell and the open tank, whereby thevarious loose parts in said feed-water heater, condenser and purifiermay be easily removed, substantially as set forth.

In testimony that I claim the foregoing I have hereunto set my hand, atMilwaukee, in the county of Milwaukee and State of Tisconsin, in thepresence of two witnesses.

JOHN MERTES.

Witnesses:

Lrvmesron A. THOMPSON, GEO. W. YOUNG.

